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A Wiggers diagram modified from [1] A Wiggers diagram, named after its developer, Carl Wiggers, is a unique diagram that has been used in teaching cardiac physiology for more than a century. [1] [2] In the Wiggers diagram, the X-axis is used to plot time subdivided into the cardiac phases, while the Y-axis typically contains the following on a ...
A Wiggers diagram illustrate events and details of the cardiac cycle with electrographic trace lines, which depict (vertical) changes in a parameter's value as time elapses left-to-right. [2] The ventricular "diastole", or relaxation, begins with "isovolumic relaxation", then proceeds through three sub-stages of inflow, namely: "rapid inflow ...
Wiggers diagram of the cardiac cycle, with isometric contraction marked at upper left. In cardiac physiology, isometric contraction is an event occurring in early systole during which the ventricles contract with no corresponding volume change (isometrically). This short-lasting portion of the cardiac cycle takes place while all heart valves ...
Carl J. Wiggers (May 28, 1883 – April 28, 1963) was a doctor and medical researcher famous for his heart and blood-pressure research. He developed the Wiggers diagram , which is commonly used in teaching of cardiovascular research.
Wiggers diagram of the cardiac cycle, with diastasis marked at top. In physiology, diastasis is the middle stage of diastole during the cycle of a heartbeat, where the initial passive filling of the heart's ventricles has slowed, but before the atria contract to complete the active filling. Diastasis is the longest phase of cardiac cycle. [1]
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English: A Wiggers diagram, showing the cardiac cycle events occuring in the left ventricle. In the atrial pressure plot: wave "a" corresponds to atrial contraction, wave "c" corresponds to an increase in pressure from the mitral valve bulging into the atrium after closure, and wave "v" corresponds to passive atrial filling.